

The 612630110716 Supercharger Gasket is a precision‑engineered sealing component that delivers uncompromised boost retention and exhaust gas containment for turbocharged diesel engines. Manufactured from high‑temperature, multi‑layer steel or advanced composite materials, this gasket withstands extreme heat, pressure cycling, and vibration, ensuring a leak‑free seal between the supercharger/turbocharger and the exhaust manifold. As a vital part of genuine Howo/Sitrak truck parts, the 612630110716 is produced to exact OEM specifications, guaranteeing a perfect fit and exceptional durability in HOWO, Sitrak, and Shacman heavy‑duty engines. Whether you are replacing a blown gasket during a turbo overhaul or performing preventive maintenance, this gasket delivers the sealing integrity, heat resistance, and reliability required to maintain peak boost pressure, reduce emissions, and extend turbocharger life, minimizing downtime and costly repairs.
The 612630110716 is not a simple paper or rubber gasket; it is a precision‑engineered sealing solution designed to withstand the extreme environment of a turbocharged diesel engine. Manufactured from high‑grade stainless steel with a multi‑layer steel (MLS) construction, or from high‑temperature composite materials depending on the application, this gasket offers excellent resistance to thermal cycling, oxidation, and creep. The precision‑formed sealing beads provide concentrated clamping pressure around the ports, ensuring a gas‑tight seal even under high boost pressures (up to 40 psi) and exhaust gas temperatures exceeding 800°C. The gasket’s surface is coated with a high‑temperature anti‑seize material to facilitate removal and prevent galling.
The 612630110716 features accurately positioned bolt holes and alignment tabs that guarantee correct orientation and prevent installation errors. Its thickness and compressibility are precisely controlled to accommodate minor surface irregularities in the mating flanges, ensuring uniform sealing pressure across the entire contact area. This gasket is designed to maintain its clamping force and elasticity over thousands of thermal cycles, providing long‑term reliability and preventing boost leaks that can cause power loss, increased fuel consumption, and turbocharger damage.
High‑Temperature Resistance – The 612630110716 withstands continuous exhaust temperatures up to 850°C, maintaining its sealing properties and structural integrity.
Boost Leak Prevention – The precision‑formed sealing beads ensure a positive seal that prevents boost pressure loss, keeping your engine at peak performance.
Precision Fit – Laser‑cut bolt holes and alignment tabs guarantee correct orientation and eliminate installation errors.
Thermal Stability – The advanced material composition resists warping and creep, maintaining a consistent seal even after repeated heat cycles.
The 612630110716 supercharger gasket is dimensionally identical to the original equipment gasket used in HOWO, Sitrak, and Shacman heavy‑duty engines. It is specifically designed for the WP10, WP12, and WP13 series turbocharged engines, matching the exhaust manifold and turbocharger inlet flange pattern exactly. The gasket’s port sizes, bolt hole spacing, and overall thickness are replicated to OEM standards, ensuring a seamless replacement that requires no modification. By choosing this genuine component, you eliminate the risks associated with aftermarket gaskets that may have incorrect port alignment, inadequate material thickness, or poor sealing bead design, which can lead to exhaust leaks, boost loss, or even turbocharger failure.
The 612630110716 has been validated through extensive engine dynamometer and on‑road testing, confirming its ability to maintain a leak‑free seal under extreme boost and thermal conditions. Fleets that have standardized on this gasket report a significant reduction in turbocharger service calls and improved engine performance. Its robust construction ensures that it withstands the demanding conditions of heavy‑haul, construction, and long‑haul transportation, reducing maintenance intervals and downtime.
Proper installation of the 612630110716 is essential to achieve a leak‑free seal and to avoid damaging the gasket or the mating surfaces. Begin by thoroughly cleaning the exhaust manifold and turbocharger mounting flanges to remove all old gasket material, carbon deposits, and debris. Use a scraper and a suitable solvent, taking care not to score the soft cast iron or steel surfaces. Inspect the flanges for flatness; if any warpage exceeds the recommended limit, the manifold or turbo housing must be machined or replaced. Position the new gasket onto the manifold studs or bolts, ensuring that the alignment tabs and bolt holes correspond correctly.
Install the turbocharger and hand‑tighten the mounting nuts or bolts. Then, using a calibrated torque wrench, tighten them in a crisscross pattern to the manufacturer’s specified torque, typically between 25 and 35 Nm for M8‑M10 studs. Do not over‑torque, as this can distort the sealing beads. After installation, start the engine and check for any exhaust leaks using a soapy water spray or a smoke tester. Re‑tighten the fasteners after the first heat cycle if necessary. Regular inspection of the 612630110716 during routine maintenance is recommended—look for signs of blow‑by or deterioration. With proper installation, this gasket will provide a durable, leak‑free seal for the life of the turbocharger.
Each 612630110716 supercharger gasket is produced in an IATF 16949‑certified facility, following strict process controls from raw material to finished product. The steel or composite material is sourced from approved suppliers and tested for thickness, tensile strength, and thermal stability. The gaskets are precision‑stamped or laser‑cut to ensure accurate port and bolt hole geometry. After forming, every gasket is 100% visually inspected and dimensionally verified using optical comparators. Random samples from each batch are subjected to a hot compression test and a thermal cycle test to simulate real‑world operating conditions.
In addition, a corrosion resistance test is performed on the coating, and the sealing beads are inspected for consistency. This comprehensive quality assurance guarantees that every 612630110716 delivers the same reliable sealing performance as the original OEM component, giving you full confidence in your turbo system repair.
Engine builders and fleet maintenance teams have come to trust the 612630110716 because it eliminates boost leaks and exhaust gas contamination, leading to more consistent engine performance and lower emissions. The gasket’s precise fit and high‑temperature durability reduce the need for re‑torquing and prevent common aftermarket failures. Many workshops have reported a noticeable reduction in turbocharger overspeed and EGT issues after switching to this genuine gasket. Its consistent quality ensures that every repair is done right the first time.
Moreover, the 612630110716 is available in convenient packaging that protects the gasket from damage during storage. Its clear part number and application information simplify parts ordering. When you choose this gasket, you are selecting a component that has been engineered and tested to the highest standards, offering the perfect balance of sealing performance, durability, and value.
In summary, the 612630110716 Supercharger Gasket is a precision‑engineered sealing component that ensures leak‑free, high‑temperature performance for HOWO, Sitrak, and Shacman turbocharged engines. Its advanced multi‑layer steel construction, precision sealing beads, and exact OEM fitment make it the ideal choice for maintaining boost integrity, protecting your turbocharger, and reducing emissions. By investing in this genuine replacement part, you are safeguarding your engine from performance‑robbing leaks and costly turbo failures.
Don’t settle for inferior gaskets that can compromise your turbo system. Choose the 612630110716 for your next turbo service or overhaul. With its proven track record and widespread acceptance among professionals, this gasket is the smart choice for anyone who values reliability, performance, and peace of mind. Keep your boost sealed and your engine performing at its peak with the 612630110716 – the definitive choice for HOWO and Sitrak professionals.